*{
    margin: 0;
    padding: 0;
}
body{
    background-color: green;
}
.con{
    position: absolute;
    z-index: 0;
    top: 50%;
    margin-top: -51px;
    left: 50%;
    margin-left: -202px;
}
.bgDiv{
    width: 100%;
    height: 100%;
    background-color: #000;
    opacity: .5;
    position:fixed;
    display: none;
    z-index: 99;
    bottom: 0;
}
.leftNav{
    width: 60%;
    max-width: 1200px;
    height: 100%;
    background-color: #fff;
    position: fixed;
    z-index: 999;
    top: 0;
    left: -60%;
}
.rightNav{
    width: 100%;
    max-width: 1200px;
    height: 100%;
    background-color: #fff;
    position: fixed;
    z-index: 999;
    top: 152px;
    right: -100%;
}
.upNav{
   width: 100%;
    height: 40%;
    background-color: #fff;
    position: fixed;
    z-index: 999;
    top: -40%;
}
.downNav{
    width: 100%;
    height: 100%;
    max-height: 1200px;
    background-color: #fff;
    position: fixed;
    z-index: 999;
    bottom: -100%;
}


